High-precision workbench movable type three-coordinate measuring machine

Abstract

The invention discloses a high-precision workbench moving type three-coordinate measuring machine, and relates to the technical field of three-coordinate measuring machines, the high-precision workbench moving type three-coordinate measuring machine comprises a three-coordinate measuring machine main body, a driving mechanism and a moving plate are installed on the three-coordinate measuring machine main body, the driving mechanism is configured to drive the moving plate to move, and the lower surface of the moving plate is connected with a servo electric push rod; a first connecting plate is connected to the telescopic end of the servo electric push rod, a detection head is connected to the lower surface of the first connecting plate, a detection needle is installed at the lower end of the detection head, and an elastic cushion is connected to the end, away from the third connecting plate, of the supporting plate. When the detection needle moves downwards along with the first connecting plate, the detection needle and the first connecting plate generate relative friction, impurities such as dust, chippings and greasy dirt on the surface of the detection needle can be automatically and rapidly erased, the influence of the impurities on the measurement precision is reduced, and the accuracy and reliability of measurement data are ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of coordinate measuring machines, and specifically to a high-precision workbench mobile coordinate measuring machine. Background Art

[0002] As a precision measuring device, the detection needle of a high-precision workbench mobile coordinate measuring machine directly contacts the measured workpiece, which is the core component to ensure measurement accuracy;

[0003] However, the existing high-precision workbench mobile coordinate measuring machines generally lack a dedicated automatic cleaning mechanism for the detection needle. For example, the gantry coordinate measuring machine with the patent application number "202410752095.6" lacks an automatic cleaning mechanism. During actual use, impurities such as dust in the air, metal chips remaining from workpiece processing, and oil stains in the measurement environment are easily adsorbed on the surface of the detection needle. Tiny impurities will change the actual contact size of the detection needle, resulting in deviation of measurement data. Therefore, we propose a high-precision workbench mobile coordinate measuring machine. Summary of the Invention

[0004] The purpose of the present invention is to provide a high-precision workbench mobile coordinate measuring machine.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A high-precision workbench mobile coordinate measuring machine, including the main body of the coordinate measuring machine, on which a driving mechanism and a moving plate are installed. The driving mechanism is configured to drive the moving plate to move. The lower surface of the moving plate is connected with a servo electric push rod, and the telescopic end of the servo electric push rod is connected with a first connecting plate. The lower surface of the first connecting plate is connected with a detection head, and a detection needle is installed at the lower end of the detection head. The lower surface of the moving plate is connected with a second connecting plate. The lower end side of the second connecting plate is connected with an elastic spring, and the other end of the elastic spring is connected with a third connecting plate. The lower end side of the third connecting plate is installed with a support plate. The upper end side of the third connecting plate is connected with a fourth connecting plate, and the side of the fourth connecting plate is connected with a pressing plate;

[0006] Among them, the pressing plate is located below the first connecting plate. The pressing plate is in a triangular plate structure, and the third connecting plate is in a "C" - shaped plate structure;

[0007] One end of the support plate far from the third connecting plate is connected with an elastic pad, and the other end of the elastic pad is connected with a non - woven fabric;

[0008] Among them, the non - woven fabric contacts the detection needle.

[0009] As a further solution of the present invention: The lower end side of the second connecting plate is fixedly connected with a cleaning box, and a rubber pad is fixedly connected to the side of the cleaning box far from the second connecting plate;

[0010] During the downward movement of the first connecting plate, its side surface fits tightly against the rubber pad, sealing the opening of the cleaning box away from the second connecting plate. The support plate can be completely inserted into the cleaning box as the third connecting plate moves.

[0011] As a further embodiment of the present invention: a side limiting rod is fixedly connected to the side of the second connecting plate, and the side limiting rod is slidably connected to the third connecting plate;

[0012] The side limiting rod has a "T" shaped rod structure.

[0013] As a further embodiment of the present invention: a water spray pipe, a water supply pipe, a suction pipe and a heating pipe are fixedly connected inside the cleaning box; a plurality of nozzles are fixedly connected to the side of the water spray pipe; the water spray pipe is connected to the water supply pipe; and the other end of the water supply pipe is connected to an external water pump.

[0014] As a further aspect of the present invention: an upper limit rod is fixedly connected to the lower surface of the drive moving plate, and the upper limit rod is slidably connected to the upper side of the first connecting plate.

[0015] As a further aspect of the present invention: the heating tube is connected to the cleaning box, and a one-way air valve is installed at the upper end of the heating tube;

[0016] The heating tube is made of high-temperature resistant material, and an electric heating plate is installed inside the heating tube.

[0017] As a further embodiment of the present invention: the lower side of the cleaning box is connected to the suction tube, and the other end of the suction tube is connected to the suction end of an external water-air dual-purpose pump.

[0018] As a further embodiment of the present invention: the support plate has an installation groove on the side near the third connecting plate, and an installation block is installed in the installation groove by bolts, and the installation block is fixedly connected to the third connecting plate.

[0019] As a further embodiment of the present invention: the third connecting plate is slidably connected to the cleaning box.

[0020] Compared with the prior art, the beneficial effects of the present invention by adopting the above technical solution are as follows:

[0021] 1. This invention uses a servo electric actuator to extend its telescopic end, driving the first connecting plate to slide downwards along the upper limit rod. The detection head drives the detection needle to move downwards synchronously, and the detection needle rubs against the non-woven fabric. By setting the non-woven fabric on the support plate and cooperating with the buffering effect of the elastic pad, the non-woven fabric is always in close contact with the detection needle. When the detection needle moves downwards with the first connecting plate, the two rub against each other, which can automatically and quickly wipe away dust, debris, oil and other impurities on the surface of the detection needle, reduce the impact of impurities on the measurement accuracy, and ensure the accuracy and reliability of the measurement data.

[0022] 2. In this invention, the first connecting plate continues to move downwards, and its lower side contacts the inclined surface of the triangular extrusion plate and applies pressure, pushing the extrusion plate to move the fourth and third connecting plates along the side limiting rod towards the second connecting plate. The support plate is completely inserted into the cleaning box, and the side of the first connecting plate is tightly fitted with the rubber pad on the cleaning box. An external water pump is started, and clean water is delivered to the spray pipe through the water supply pipe. Several nozzles on the side of the spray pipe spray water evenly onto the non-woven fabric to rinse away impurities attached to the non-woven fabric. The wastewater generated during rinsing is suctioned through the suction pipe on the lower side of the cleaning box. Under the suction of an external water-air dual-purpose pump, the wastewater is discharged. After the wastewater is discharged, the water-air dual-purpose pump continues to draw air from the cleaning box. The air flows into the heating tube through a one-way air valve. The electric heating plate in the heating tube is activated to heat the air. The generated hot air is then introduced into the cleaning box through the heating tube to dry the damp non-woven fabric. This achieves automatic storage, sealed cleaning, wastewater discharge, and drying of the non-woven fabric without the need for manual disassembly and cleaning. It solves the problems of manual cleaning of cleaning tools, low efficiency, and easy secondary pollution, ensuring that the non-woven fabric is always kept clean and guaranteeing the continuous cleaning effect on the detection needle.

[0023] 3. This invention achieves detachable connection of the support plate through the cooperation of the mounting groove, mounting block and bolt. When the non-woven fabric is worn, aged or the cleaning effect decreases after long-term use, the bolt can be unscrewed and the support plate can be removed from the third connecting plate and replaced.

[0024] Other advantages, objectives and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be learned from the practice of the invention. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the device in an embodiment of the present invention;

[0026] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle;

[0027] Figure 3 for Figure 1 Enlarged structural diagram at point B;

[0028] Figure 4 for Figure 1 Enlarged structural diagram at point C;

[0029] Figure 5 for Figure 1 Enlarged structural diagram at point D;

[0030] Figure 6 This is a schematic diagram of a portion of the device structure in an embodiment of the present invention;

[0031] Figure 7 for Figure 6 Enlarged structural diagram at point E in the middle.

[0032] In the diagram: 1. Main body of the coordinate measuring machine; 2. Moving plate; 3. Servo electric actuator; 4. First connecting plate; 5. Upper limit rod; 6. Second connecting plate; 7. Elastic spring; 8. Side limit rod; 9. Third connecting plate; 10. Fourth connecting plate; 11. Extrusion plate; 12. Detection head; 13. Detection needle; 14. Cleaning box; 15. Rubber pad; 16. Water spray pipe; 17. Water supply pipe; 18. Heating pipe; 19. One-way air valve; 20. Support plate; 21. Elastic pad; 22. Non-woven fabric; 23. Mounting groove; 24. Mounting block; 25. Suction pipe. Detailed Implementation

[0033] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. It should be noted that the description of these embodiments is for the purpose of helping to understand the present invention, but does not constitute a limitation of the present invention.

[0034] Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0035] Please see the appendix Figure 1 -Appendix Figure 7, a high-precision workbench mobile three-coordinate measuring machine of the present invention includes a three-coordinate measuring machine main body 1, a driving mechanism and a moving plate 2 are installed on the three-coordinate measuring machine main body 1. The driving mechanism is configured to drive the moving plate 2 to move. A servo electric push rod 3 is connected to the lower surface of the moving plate 2. The telescopic end of the servo electric push rod 3 is connected to a first connecting plate 4. A detection head 12 is connected to the lower surface of the first connecting plate 4. A detection needle 13 is installed at the lower end of the detection head 12. A second connecting plate 6 is connected to the lower surface of the moving plate 2. A tension spring 7 is connected to the lower end side of the second connecting plate 6. The other end of the tension spring 7 is connected to a third connecting plate 9. A support plate 20 is installed on the lower end side of the third connecting plate 9. A fourth connecting plate 10 is connected to the upper end side of the third connecting plate 9. An extrusion plate 11 is connected to the side of the fourth connecting plate 10. Among them, the extrusion plate 11 is located below the first connecting plate 4. The extrusion plate 11 is in a triangular plate structure. The third connecting plate 9 is in a "C" - shaped plate structure. One end of the support plate 20 far from the third connecting plate 9 is connected to an elastic pad 21. The other end of the elastic pad 21 is connected to a non - woven fabric 22. Among them, the non - woven fabric 22 contacts the detection needle 13;

[0036] During specific use, when the device is not working, the tension spring 7 is in a natural stretched state. The third connecting plate 9 maintains its initial position under the guidance of the side limit rod 8. The non - woven fabric 22 on the support plate 20 remains in contact with the detection needle 13 and is elastically supported by the elastic pad 21. The cleaning box 14 is in an open state. The first connecting plate 4 is located above and does not contact the rubber pad 15. When the device works, the telescopic end of the servo electric push rod 3 extends, driving the first connecting plate 4 to slide downward along the upper limit rod 5. The detection head 12带动 the detection needle 13 to move downward synchronously. The detection needle 13 and the non - woven fabric 22 have relative friction. The non - woven fabric 22 closely adheres to the surface of the detection needle 13 through the buffering effect of the elastic pad 21, wiping off the impurities attached to the detection needle 13, avoiding the influence of impurities on the subsequent measurement accuracy. Subsequently, the target object can be measured through the detection needle 13.

[0037] Furthermore, a cleaning box 14 is fixedly connected to the lower end side of the second connecting plate 6. A rubber pad 15 is fixedly connected to one side of the cleaning box 14 far from the second connecting plate 6;

[0038] Among them, during the downward movement of the first connecting plate 4, its side closely adheres to the rubber pad 15, forming a seal for the opening on the side of the cleaning box 14 far from the second connecting plate 6. The support plate 20 can be completely inserted into the cleaning box 14 along with the movement of the third connecting plate 9;

[0039] Specifically, the cleaning box 14 provides a closed cleaning space for the non - woven fabric 22. The close fit between the rubber pad 15 and the first connecting plate 4 realizes the sealing of the cleaning process.

[0040] Furthermore, a side limit rod 8 is fixedly connected to the side of the second connecting plate 6. The side limit rod 8 is slidably connected to the third connecting plate 9;

[0041] Among them, the side limiting rod 8 has a "T" shaped rod structure;

[0042] Specifically, the sliding connection between the side limiting rod 8 and the third connecting plate 9 provides precise guidance for the movement of the third connecting plate 9, ensuring that the support plate 20 can be smoothly and accurately inserted into the cleaning box 14 or reset.

[0043] Furthermore, a water spray pipe 16, a water supply pipe 17, a suction pipe 25, and a heating pipe 18 are fixedly connected inside the cleaning box 14. Several nozzles are fixedly connected to the side of the water spray pipe 16. The water spray pipe 16 is connected to the water supply pipe 17, and the other end of the water supply pipe 17 is connected to an external water pump.

[0044] Specifically, several nozzles on the side of the water spray pipe 16 achieve uniform spraying of cleaning water, ensuring that all parts of the non-woven fabric 22 can be rinsed.

[0045] Furthermore, an upper limit rod 5 is fixedly connected to the lower surface of the drive moving plate 2, and the upper limit rod 5 is slidably connected to the upper side of the first connecting plate 4;

[0046] Specifically, the sliding connection between the upper limit rod 5 and the first connecting plate 4 provides guidance for the up and down movement of the first connecting plate 4.

[0047] Furthermore, the heating tube 18 is connected to the cleaning box 14, and a one-way air valve 19 is installed at the upper end of the heating tube 18;

[0048] Among them, the heating tube 18 is made of high temperature resistant material, and an electric heating plate is installed inside the heating tube 18;

[0049] Specifically, heating element 18 can heat the incoming air.

[0050] Furthermore, the lower side of the cleaning box 14 is connected to the suction pipe 25, and the other end of the suction pipe 25 is connected to the suction end of the external water and air dual-purpose pump.

[0051] Specifically, the suction tube 25 can draw in both water and air.

[0052] Furthermore, the support plate 20 has an installation groove 23 on the side near the third connecting plate 9, and an installation block 24 is installed in the installation groove 23 by bolts, and the installation block 24 is fixedly connected to the third connecting plate 9.

[0053] Specifically, when the non-woven fabric 22 needs to be replaced after long-term use, simply unscrew the bolts connecting the mounting slot 23 and the mounting block 24 to remove the support plate 20 from the third connecting plate 9, replace it with a new non-woven fabric 22, and reinstall it. The operation is convenient.

[0054] Furthermore, the third connecting plate 9 is slidably connected to the cleaning box 14;

[0055] Specifically, the third connecting plate 9 can pull the support plate 20 into the cleaning box 14.

[0056] Working principle:

[0057] First, when the device is not in operation, the spring spring 7 is in its naturally extended state, the third connecting plate 9 maintains its initial position under the guidance of the side limiting rod 8, the non-woven fabric 22 on the support plate 20 remains in contact with the detection needle 13, the cleaning box 14 is in the open state, and the first connecting plate 4 is located above and not in contact with the rubber pad 15. When the device is in operation, the telescopic end of the servo electric push rod 3 extends, driving the first connecting plate 4 to slide downward along the upper limit rod 5. The detection head 12 drives the detection needle 13 to move downward synchronously, and the detection needle 13 rubs against the non-woven fabric 22. The non-woven fabric 22 is cushioned by the elastic pad 21. The surface of the detection needle 13 is tightly sealed to remove any impurities adhering to it, preventing them from affecting the accuracy of subsequent measurements. The target object can then be measured using the detection needle 13. The first connecting plate 4 continues to move downwards, its lower side contacting the inclined surface of the triangular extrusion plate 11 and applying pressure. This pushes the extrusion plate 11, causing the fourth connecting plate 10 and the third connecting plate 9 to move along the side limiting rod 8 towards the second connecting plate 6. The elastic spring 7 is compressed. During this process, the non-woven fabric 22 moves synchronously with the support plate 20, gradually detaching from the detection needle 13 until the support plate 20 is completely inserted into the cleaning box. Inside the cleaning box 14, the side of the first connecting plate 4 is tightly fitted to the rubber gasket 15 on the cleaning box 14, forming a seal on the opening of the cleaning box 14 away from the second connecting plate 6 to prevent water leakage during cleaning. After sealing, the external water pump is started, supplying cleaning water to the spray pipe 16 through the water supply pipe 17. Several nozzles on the side of the spray pipe 16 spray water evenly onto the non-woven fabric 22 to rinse the impurities attached to the non-woven fabric 22. The wastewater generated during rinsing is discharged through the suction pipe 25 on the lower side of the cleaning box 14 under the suction of the external water-air dual-purpose pump. After the wastewater is discharged, the water... The dual-purpose air pump continuously draws air from the cleaning box 14 to create a negative pressure environment. The gas flows into the heating tube 18 through the one-way air valve 19. The electric heating plate in the heating tube 18 starts heating, and the generated hot air is introduced into the cleaning box 14 through the heating tube 18 to dry the damp non-woven fabric 22. The extension end of the servo electric push rod 3 retracts, the first connecting plate 4 moves upward, releasing the pressure on the squeezing plate 11. The elastic spring 7 returns to its natural extension, driving the third connecting plate 9 and the support plate 20 to reset along the side limit rod 8. The non-woven fabric 22 contacts the detection needle 13 again. At this point, the entire process is completed.

[0058] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on.

[0059] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0060] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments.

[0061] For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and these variations still fall within the protection scope of the present invention.

Claims

1. A high-precision table-moving coordinate measuring machine, comprising a coordinate measuring machine body (1), a drive mechanism and a moving plate (2) mounted on the coordinate measuring machine body (1), the drive mechanism being configured to drive the moving plate (2) to move, a servo electric actuator (3) connected to the lower surface of the moving plate (2), a first connecting plate (4) connected to the telescopic end of the servo electric actuator (3), a detection head (12) connected to the lower surface of the first connecting plate (4), and a detection needle (13) mounted on the lower end of the detection head (12), characterized in that: A second connecting plate (6) is connected to the lower surface of the moving plate (2). A elastic spring (7) is connected to the lower side of the second connecting plate (6). The other end of the elastic spring (7) is connected to a third connecting plate (9). A support plate (20) is installed on the lower side of the third connecting plate (9). A fourth connecting plate (10) is connected to the upper side of the third connecting plate (9). An extrusion plate (11) is connected to the side of the fourth connecting plate (10). Among them, the extrusion plate (11) is located below the first connecting plate (4). The extrusion plate (11) is in a triangular plate structure. The third connecting plate (9) is in a "C"-shaped plate structure. One end of the support plate (20) away from the third connecting plate (9) is connected to an elastic pad (21). The other end of the elastic pad (21) is connected to a non-woven fabric (22). Among them, the non-woven fabric (22) contacts the detection needle (13).

2. The high-precision table-moving coordinate measuring machine according to claim 1, characterized in that: A cleaning box (14) is fixedly connected to the lower side of the second connecting plate (6). A rubber pad (15) is fixedly connected to one side of the cleaning box (14) away from the second connecting plate (6). Among them, during the downward movement of the first connecting plate (4), its side closely fits with the rubber pad (15), forming a seal for the opening on the side of the cleaning box (14) away from the second connecting plate (6). The support plate (20) can be completely inserted into the cleaning box (14) along with the movement of the third connecting plate (9).

3. A high-precision table-moving coordinate measuring machine according to claim 1, characterized in that: A side limiting rod (8) is fixedly connected to the side of the second connecting plate (6). The side limiting rod (8) is slidably connected to the third connecting plate (9). Among them, the side limiting rod (8) is in a "T"-shaped rod structure.

4. A high-precision table-moving coordinate measuring machine according to claim 2, characterized in that: A water spraying pipe (16), a water supply pipe (17), a suction pipe (2 5. A high-precision table-moving coordinate measuring machine according to claim 1, characterized in that: ​ 6. A high-precision table-moving coordinate measuring machine according to claim 4, characterized in that: ​ ​ 7. A high-precision table-moving coordinate measuring machine according to claim 4, characterized in that: ​ 8. A high-precision table-moving coordinate measuring machine according to claim 1, characterized in that: ​ 9. A high-precision table-moving coordinate measuring machine according to claim 2, characterized in that: ​

Images